Things I liked:see belowThings I would have changed:The Steyr LP10 was chosen for this test to enable these pellet to shoot their best. It is a world class PCP air pistol that will out shoot most rifles listed on this site. However, at $2,000 plus... is unreasonable for most peoples budgets.
I tested several different pellets through this purpose built, 10M pistol, and here's what I came up with...
With the LP10 gingerly clamped in a vise, I found that overall, target arms prefer the heavier pellets to produce the best accuracy. I this case 8.13 grain projectiles. You'll have to test pellet diameter through your individual gun. All measurements are average group size from edge to edge. Should you so desire, by subtracting .177 from these numbers, you will have center to center (C/C) group size. All shot at 10M, cleaned between 20 shot groups, 5 shots per string yadda yadda......
Hands down best...
H&N Finale Match .232,...that’s less than ten thousandths of an inch group size C/C.
Second,
Beeman brand H&N Match .270
RWS R10 .280
Champions choice brand .348
RWS Hobby .351
RWS Meisterkugeln .361
H&N Excite Econ .401
Crosman Competitions .492
RWS Diabolo Basic .572
Gamo target .579
It really seems to ring true...You get what you pay for! What others should know:Mind you all of these pellets, except for the Gamo and the Basic, will hold the 10 ring on a 10M pistol target...all day long. Incidentally, I have a good supply of Hobby's for practice and just ordered a few thousand H&N Excite ECON's. For game day, I ordered a supply of the Finale Match.
Now, I have been a competitive shooter for many years, and expanded great deals of time, money and gray hair developing my opinions. I'm not a firm believer in theory that “you must test all projectiles in your gun to see what it likes best”. I have had much greater success matching the chosen weapon with the correct TYPE of ammo for the velocity you will be shooting...in this case under 600fps. I have also found that in terms of accuracy, projectile DIAMETER is most crucial, followed closely by weight, then profile. Expecting the above target grade pellets to give results like these in your 15,521 fps gas piston break barrel is bemusing at best! Domed, or pointy, heavy hunting rounds will serve you better as the wadcutter becomes unstable at higher speeds. (look at the picture of the H&N pellet tins, They have rating that will give an Idea of which KIND of pellet to buy, regardless of brand)
Keep in mind...If your intentions are to turn some pesky varmint into a cloud of red vapor...these are NOT the pellets or launch platform for you! If you must have extreme accuracy AND cataclysmic affect, you may need to buy TWO rifles...and I'm sure Pyramyd Air would be happy to assist you!